Katy Perry Responds to Miley Cyrus Tweet About Ex

PHOTO: Miley Cyrus is seen left on Feb. 25, 2014 performing on San Jose Calif. and Katy Perry is seen right on March 4, 2014 at the start of her world tour in Sydney, Australia. PlayGetty Images
WATCH The Miley Cyrus-Katy Perry Kiss That Took Over Twitter

Katy Perry didn't waste much time responding to Miley Cyrus' tweet about her ex John Mayer and where his "tongue" has been.

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"@MileyCyrus Oooo gurrrl I'm gonna give you the BIGGEST spanking when I see you in the UK bb!" Perry tweeted yesterday.

This came after Cyrus had tweeted: "Girl if ur worried abt where tongues have been good thing ur ex boo is ur EX BOO cause we ALL know where THAT [tongue has] been."

Cyrus was almost certainly talking about John Mayer. It was reported last week that

PHOTO: A YouTube screen grab of Katy Perry pulling away after kissing Miley Cyrus is seen.Luis Bustamante/Youtube
A YouTube screen grab of Katy Perry pulling away after kissing Miley Cyrus is seen.

http://abcnews.go.com/Entertainment/signs-john-mayer-katy-perry-split/story?id=22686621 >Perry and Mayer had broken up.

Read: Why Katy Perry Rebuffed Miley Cyrus' Make-Out Attempt

The back-and-forth started a few days ago when Katy Perry explained to Australian morning show "Sunrise" why she pulled away from Miley Cyrus after she tried to make out with her at a "Bangerz" concert last month.

The reason she didn't make out with the "Wrecking Ball" singer, Perry first said: "God knows where that tongue has been. We don't know, that tongue is so infamous."

Looks like the two are still friends though, Cyrus followed up her tweet with a pretty life-like drawing of the two lip locked, captioned "Dontchyouuuu act like you didn't lurvvvvv it ? @katyperry."

And the saga continues!